This PR implements the preview tabs feature from VSCode.
More details and thanks for the head start of the implementation here
#6782.
Here is what I have observed from using the vscode implementation ([x]
-> already implemented):
- [x] Single click on project file opens tab as preview
- [x] Double click on item in project panel opens tab as permanent
- [x] Double click on the tab makes it permanent
- [x] Navigating away from the tab makes the tab permanent and the new
tab is shown as preview (e.g. GoToReference)
- [x] Existing preview tab is reused when opening a new tab
- [x] Dragging tab to the same/another panel makes the tab permanent
- [x] Opening a tab from the file finder makes the tab permanent
- [x] Editing a preview tab will make the tab permanent
- [x] Using the space key in the project panel opens the tab as preview
- [x] Handle navigation history correctly (restore a preview tab as
preview as well)
- [x] Restore preview tabs after restarting
- [x] Support opening files from file finder in preview mode (vscode:
"Enable Preview From Quick Open")
I need to do some more testing of the vscode implementation, there might
be other behaviors/workflows which im not aware of that open an item as
preview/make them permanent.
Showcase:
https://github.com/zed-industries/zed/assets/53836821/9be16515-c740-4905-bea1-88871112ef86
TODOs
- [x] Provide `enable_preview_tabs` setting
- [x] Write some tests
- [x] How should we handle this in collaboration mode (have not tested
the behavior so far)
- [x] Keyboard driven usage (probably need workspace commands)
- [x] Register `TogglePreviewTab` only when setting enabled?
- [x] Render preview tabs in tab switcher as italic
- [x] Render preview tabs in image viewer as italic
- [x] Should this be enabled by default (it is the default behavior in
VSCode)?
- [x] Docs
Future improvements (out of scope for now):
- Support preview mode for find all references and possibly other
multibuffers (VSCode: "Enable Preview From Code Navigation")
Release Notes:
- Added preview tabs
([#4922](https://github.com/zed-industries/zed/issues/4922)).
---------
Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
tab switcher retrieves active pane from workspace, but that function is
not aware of Terminal Panel's pane. Thus in this PR we retrieve it
manually and use it as the active pane if terminal panel has focus.
Release Notes:
- Fixed tab switcher not working in terminal panel.
The Tab Switcher implementation (#7653):
- `ctrl-tab` opens the Tab Switcher and moves selection to the
previously selcted tab. It also cycles selection forward.
- `ctrl-shift-tab` opens the Tab Switcher and moves selection to the
last tab in the list. It also cycles selection backward.
- Tab is selected and the Tab Switcher is closed on the shortcut
modifier key (`ctrl` by default) release.
- List items are in reverse activation history order.
- The list reacts to the item changes in background (new tab, tab
closed, tab title changed etc.)
Intentionally not in scope of this PR:
- File icons
- Close buttons
I will come back to these features. I think they need to be implemented
in separate PRs, and be synchronized with changes in how tabs are
rendered, to reuse the code as it's done in the current implementation.
The Tab Switcher looks usable even without them.
Known Issues:
Tab Switcher doesn't react to mouse click on a list item. It's not a tab
switcher specific problem, it looks like ctrl-clicks are not handled the
same way in Zed as cmd-clicks. For instance, menu items can be activated
with cmd-click, but don't react to ctrl-click. Since the Tab Switcher's
default keybinding is `ctrl-tab`, the user can only click an item with
`ctrl` pushed down, thus preventing `on_click()` from firing.
fixes#7653, #7321
Release Notes:
- Added Tab Switcher which is accessible via `ctrl-tab` and
`ctrl-shift-tab` (#7653) (#7321)
Related issues:
- Unblocks #7356, I hope 😄
How it looks and works (it's only `ctrl-tab`'s and `ctrl-shift-tab`'s,
no `enter`'s or mouse clicks):
https://github.com/zed-industries/zed/assets/2101250/4ad4ec6a-5314-481b-8b35-7ac85e43eb92
---------
Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
Co-authored-by: Mikayla Maki <mikayla@zed.dev>
